A string concatenation operation evaluates to null if all of the input columns have a value.

Answer the following statement true (T) or false (F)


False

Computer Science & Information Technology

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What is the purpose of the Secure tab on a switch?

a. The switch port will use port discovery to assign a MAC address to the port. b. The switch port will automatically disable itself if a device with a different MAC address connects to the port. c. The switch port will use a different MAC address than the one connected to the port. d. This enables the switch to select what networking devices have a selectable IP address.

Computer Science & Information Technology

What is another word for a subscript?

A. superscript B. subroutine C. variable D. index

Computer Science & Information Technology

The structure often used to sequence through an array is the ____.

A. do loop B. do while loop C. for loop D. linked list

Computer Science & Information Technology

________ is a software that is completely free to use without any specified time restrictions.

A. Subscription software B. Open source software C. Shareware D. Freeware

Computer Science & Information Technology